Name __________________________________
Period ______
Date ________
Chapter 4 Section 1 Quiz Review Answer Key
Matching
Directions: Match the correct definition to each term.
__C__ 1. matter
a. tells you the number of protons and electrons in an atom
__B__ 2. atom
b. building blocks of all matter
__A__ 3. atomic number
c. anything that has mass and takes up space
__D__ 4. atomic mass
d. the mass of one atom of an element
Draw and Label an Atom (Questions 4-7)
Directions: Use the following terms to label an atom: nucleus, neutron, proton, electron
5. PROTON
6. NEUTRON
7. NUCLEUS
8. ELECTRON
Fill in the Blank
Directions: Choose the term or phrase that best completes the sentence.
9-11. The first orbital may hold up to __2__ electrons, the 2nd orbital can hold up to __8__ electrons,
and the 3rd orbital can hold up to __18__ electrons.
Fill in the Blank
Use the information provided to answer questions 14-15. (1 point each)
13
Al
Aluminum
27
12. The atomic number of aluminum is ______13______.
13. The number 27 is the ____atomic mass____ of
aluminum.
Chapter 4 Section 1 Quiz Review
continued on the back.
Understanding Concepts
Use the following information to determine the number of protons, neutrons, and electrons in an atom
of Beryllium. You may choose to draw a picture to help you answer the questions.
4
Be
Beryllium
9
14. How many PROTONS are in one atom of Beryllium? __4__
15. How many NEUTRONS are in one atom of Beryllium? __5__
16. How many ELECTRONS (total) are in one atom of Beryllium? __4__
17. How many electrons are in the 1st orbital (shell)? __2__
18. How many electrons are in the 2nd orbital (shell)? __2__
19. How many electrons are in the 3rd orbital (shell)? __0__
4P
5N
2E
2E
Short Answer
20. What is the charge of a proton? positive (+)
21. What is the charge of an electron? negative (-)
22. What is the charge of a neutron? neutral (0)
23. Where are protons and neutrons located in an atom? inside the nucleus
24. Where are electrons located in an atom? outside of the nucleus
25. Compare and contrast the size of protons, neutrons, and electrons.
protons and neutrons are larger, while electrons are much smaller